World ranking

A moving window: generally the past 52 weeks

Unexpired previous-season results can count
Eligible current-season results can count

Older points leave the window as time passes. A player can lose points without losing another match.

Race to Turin

The current season’s points contest

Previous-season results excluded
Eligible current-season results can count

The Race leaves out the older results that can still support a world ranking.

Schematic: widths do not represent time or points. Tournament-counting limits apply. ATP Finals points have a special expiry date under the ranking rules. Neither table alone confirms that a qualified player will participate in Turin.